shouldUseRownumFiltering

Return if Oracle ROWNUM pagination should be used for FirstResult and MaxRows settings.
Default is false.

setSupportsIdentity

public void setSupportsIdentity(boolean supportsIdentity)

ADVANCED:
Oracle db doesn't support identity.
However it's possible to get identity-like behaviour
using sequence in an insert trigger - that's the only
case when supportsIdentity should be set to true:
in this case all the sequences that have shouldAcquireValueAfterInsert
set to true will keep this setting (it would've been reversed in case
identity is not supported).
Note that with supportsIdentity==true attempt to create tables that have
identity fields will fail - Oracle doesn't support identity.
Therefore if there's table creation reqiured it should be done
with supportsIdentity==false, then set the flag to true and reset sequencing
(or logout and login the session).

supportsSelectForUpdateNoWait

public boolean supportsSelectForUpdateNoWait()

Returns true if the database supports SQL syntax not to wait on a SELECT..FOR UPADTE
(i.e. In Oracle adding NOWAIT to the end will accomplish this)